Dorman - OE Solutions Coil Spring Insulator P/N:540-905
Cushion the coil spring and keep suspension vibration from reaching the chassis with the Dorman - OE Solutions Coil Spring Insulator 540-903. It drops in as a direct-fit replacement for the original insulator on the listed applications, covering the front upper and front lower spring seats on 1986-2005 Chevrolet Astro and GMC Safari, 1992-2000 Chevrolet and GMC C1500-C3500 pickups and Suburbans, 1991-2003 Chevrolet S10 and GMC Sonoma, 1995-2004 Chevrolet Blazer, 1995-2000 Chevrolet Tahoe, and the 1996-2002 Express and Savana vans, plus many more — see the Buyer's Guide tab for the full list.
Country of origin: China. Package contains one insulator.
Interchange: TD4650W · 15737908 · K160045. Manufacturer part number 540-903 (also 540903).
This part cross-references / interchanges with the following part numbers:
What does the Dorman 540-903 coil spring insulator do?
It seats between the coil spring and the chassis to control vibration transfer. Replacing worn insulators helps reduce tire wear and quiet suspension vibration on the listed applications.
Which vehicles does it fit?
It fits the front upper and front lower spring seats on many 1986-2005 Chevrolet and GMC trucks and vans (Astro, Safari, C1500-C3500, S10, Sonoma, Blazer, Tahoe, Express, Savana). See the Buyer's Guide tab for the full list.
What is it made of and how big is it?
It's molded black, round rubber measuring 143 mm outside diameter, 84 mm inside diameter and 25 mm thick, with a mounting-hole attachment.
Is mounting hardware included?
No. Mounting hardware is not included with this insulator; consult the vehicle service information for the correct hardware and whether it may be reused.
What interchange numbers does it replace?
It interchanges with TD4650W, 15737908 and K160045. Its own identifier is Dorman manufacturer part number 540-903.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.